+++ /dev/null
-/**************************************************************************
- * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
- * *
- * Author: The ALICE Off-line Project. *
- * Contributors are mentioned in the code where appropriate. *
- * *
- * Permission to use, copy, modify and distribute this software and its *
- * documentation strictly for non-commercial purposes is hereby granted *
- * without fee, provided that the above copyright notice appears in all *
- * copies and that both the copyright notice and this permission notice *
- * appear in the supporting documentation. The authors make no claims *
- * about the suitability of this software for any purpose. It is *
- * provided "as is" without express or implied warranty. *
- **************************************************************************/
-
-//_________________________________________________________________________
-// Class for PID selection with calorimeters
-// The Output of the main method GetIdentifiedParticleType is a PDG number identifying the cluster,
-// being kPhoton, kElectron, kPi0 ... as defined in the header file
-// - GetIdentifiedParticleType(const TString calo, const TLorentzVector mom, const AliVCluster * cluster)
-// Assignes a PID tag to the cluster, right now there is the possibility to : use bayesian weights from reco,
-// recalculate them (EMCAL) or use other procedures not used in reco.
-// In order to recalculate Bayesian, it is necessary to load the EMCALUtils library
-// and do SwitchOnBayesianRecalculation().
-// To change the PID parameters from Low to High like the ones by default, use the constructor
-// AliCaloPID(flux)
-// where flux is AliCaloPID::kLow or AliCaloPID::kHigh
-// If it is necessary to change the parameters use the constructor
-// AliCaloPID(AliEMCALPIDUtils *utils) and set the parameters before.
-
-// - GetGetIdentifiedParticleTypeFromBayesian(const TString calo, const Double_t * pid, const Float_t energy)
-// Reads the PID weights array of the ESDs and depending on its magnitude identifies the particle,
-// executed when bayesian is ON by GetIdentifiedParticleType(const TString calo, const TLorentzVector mom, const AliVCluster * cluster)
-// - SetPIDBits: Simple PID, depending on the thresholds fLOCut fTOFCut and even the
-// result of the PID bayesian a different PID bit is set.
-//
-// - IsTrackMatched(): Independent method that needs to be combined with GetIdentifiedParticleType to know if the cluster was matched
-//
-//*-- Author: Gustavo Conesa (INFN-LNF)
-//////////////////////////////////////////////////////////////////////////////
-
-
-// --- ROOT system ---
-#include <TMath.h>
-#include <TString.h>
-#include <TList.h>
-
-// ---- ANALYSIS system ----
-#include "AliCaloPID.h"
-#include "AliVCluster.h"
-#include "AliVTrack.h"
-#include "AliAODPWG4Particle.h"
-#include "AliCalorimeterUtils.h"
-#include "AliVEvent.h"
-
-// ---- Detector ----
-#include "AliEMCALPIDUtils.h"
-
-ClassImp(AliCaloPID)
-
-
-//________________________
-AliCaloPID::AliCaloPID() :
-TObject(), fDebug(-1), fParticleFlux(kLow),
-//Bayesian
-fEMCALPIDUtils(), fUseBayesianWeights(kFALSE), fRecalculateBayesian(kFALSE),
-fEMCALPhotonWeight(0.), fEMCALPi0Weight(0.),
-fEMCALElectronWeight(0.), fEMCALChargeWeight(0.), fEMCALNeutralWeight(0.),
-fPHOSPhotonWeight(0.), fPHOSPi0Weight(0.),
-fPHOSElectronWeight(0.), fPHOSChargeWeight(0.) , fPHOSNeutralWeight(0.),
-fPHOSWeightFormula(0), fPHOSPhotonWeightFormula(0), fPHOSPi0WeightFormula(0),
-fPHOSPhotonWeightFormulaExpression(""),
-fPHOSPi0WeightFormulaExpression(""),
-//PID calculation
-fEMCALL0CutMax(100.), fEMCALL0CutMin(0),
-fEMCALDEtaCut(2000.), fEMCALDPhiCut(2000.),
-fTOFCut(0.),
-fPHOSDispersionCut(1000), fPHOSRCut(1000)
-{
- //Ctor
-
- //Initialize parameters
- InitParameters();
-}
-
-//________________________________________
-AliCaloPID::AliCaloPID(const Int_t flux) :
-TObject(), fDebug(-1), fParticleFlux(flux),
-//Bayesian
-fEMCALPIDUtils(), fUseBayesianWeights(kFALSE), fRecalculateBayesian(kFALSE),
-fEMCALPhotonWeight(0.), fEMCALPi0Weight(0.),
-fEMCALElectronWeight(0.), fEMCALChargeWeight(0.), fEMCALNeutralWeight(0.),
-fPHOSPhotonWeight(0.), fPHOSPi0Weight(0.),
-fPHOSElectronWeight(0.), fPHOSChargeWeight(0.) , fPHOSNeutralWeight(0.),
-fPHOSWeightFormula(0), fPHOSPhotonWeightFormula(0), fPHOSPi0WeightFormula(0),
-fPHOSPhotonWeightFormulaExpression(""),
-fPHOSPi0WeightFormulaExpression(""),
-//PID calculation
-fEMCALL0CutMax(100.), fEMCALL0CutMin(0),
-fEMCALDEtaCut(2000.), fEMCALDPhiCut(2000.),
-fTOFCut(0.),
-fPHOSDispersionCut(1000), fPHOSRCut(1000)
-{
- //Ctor
-
- //Initialize parameters
- InitParameters();
-
-}
-
-//_______________________________________________
-AliCaloPID::AliCaloPID(const TNamed * emcalpid) :
-TObject(), fDebug(-1), fParticleFlux(kLow),
-//Bayesian
-fEMCALPIDUtils((AliEMCALPIDUtils*)emcalpid),
-fUseBayesianWeights(kFALSE), fRecalculateBayesian(kFALSE),
-fEMCALPhotonWeight(0.), fEMCALPi0Weight(0.),
-fEMCALElectronWeight(0.), fEMCALChargeWeight(0.), fEMCALNeutralWeight(0.),
-fPHOSPhotonWeight(0.), fPHOSPi0Weight(0.),
-fPHOSElectronWeight(0.), fPHOSChargeWeight(0.) , fPHOSNeutralWeight(0.),
-fPHOSWeightFormula(0), fPHOSPhotonWeightFormula(0), fPHOSPi0WeightFormula(0),
-fPHOSPhotonWeightFormulaExpression(""),
-fPHOSPi0WeightFormulaExpression(""),
-//PID calculation
-fEMCALL0CutMax(100.), fEMCALL0CutMin(0),
-fEMCALDEtaCut(2000.), fEMCALDPhiCut(2000.),
-fTOFCut(0.),
-fPHOSDispersionCut(1000), fPHOSRCut(1000)
-{
- //Ctor
-
- //Initialize parameters
- InitParameters();
-}
-
-//_______________________
-AliCaloPID::~AliCaloPID()
-{
- //Dtor
-
- delete fPHOSPhotonWeightFormula ;
- delete fPHOSPi0WeightFormula ;
- delete fEMCALPIDUtils ;
-
-}
-
-//_______________________________
-void AliCaloPID::InitParameters()
-{
- //Initialize the parameters of the PID.
-
- // Bayesian
- fEMCALPhotonWeight = 0.6 ;
- fEMCALPi0Weight = 0.6 ;
- fEMCALElectronWeight = 0.6 ;
- fEMCALChargeWeight = 0.6 ;
- fEMCALNeutralWeight = 0.6 ;
-
- fPHOSPhotonWeight = 0.6 ;
- fPHOSPi0Weight = 0.6 ;
- fPHOSElectronWeight = 0.6 ;
- fPHOSChargeWeight = 0.6 ;
- fPHOSNeutralWeight = 0.6 ;
-
- //Formula to set the PID weight threshold for photon or pi0
- fPHOSWeightFormula = kFALSE;
- fPHOSPhotonWeightFormulaExpression = "0.98*(x<40)+ 0.68*(x>=100)+(x>=40 && x<100)*(0.98+x*(6e-3)-x*x*(2e-04)+x*x*x*(1.1e-06))";
- fPHOSPi0WeightFormulaExpression = "0.98*(x<65)+ 0.915*(x>=100)+(x>=65 && x-x*(1.95e-3)-x*x*(4.31e-05)+x*x*x*(3.61e-07))" ;
-
- if(fRecalculateBayesian){
- if(fParticleFlux == kLow){
- printf("AliCaloPID::Init() - SetLOWFluxParam\n");
- fEMCALPIDUtils->SetLowFluxParam() ;
- }
- else if (fParticleFlux == kHigh){
- printf("AliCaloPID::Init() - SetHIGHFluxParam\n");
- fEMCALPIDUtils->SetHighFluxParam() ;
- }
- }
-
- //PID recalculation, not bayesian
-
- //EMCAL
- fEMCALL0CutMax = 0.3 ;
- fEMCALL0CutMin = 0.01;
-
- fEMCALDPhiCut = 0.05; // Same cut as in AliEMCALRecoUtils
- fEMCALDEtaCut = 0.025;// Same cut as in AliEMCALRecoUtils
-
- // PHOS / EMCAL, not used
- fTOFCut = 1.e-6;
-
- //PHOS
- fPHOSRCut = 2. ;
- fPHOSDispersionCut = 2.5;
-
-}
-
-//______________________________________________
-AliEMCALPIDUtils *AliCaloPID::GetEMCALPIDUtils()
-{
- // return pointer to AliEMCALPIDUtils, create it if needed
-
- if(!fEMCALPIDUtils) fEMCALPIDUtils = new AliEMCALPIDUtils ;
- return fEMCALPIDUtils ;
-
-}
-
-
-//______________________________________________________________________
-Int_t AliCaloPID::GetIdentifiedParticleType(const TString calo,
- const TLorentzVector mom,
- const AliVCluster * cluster)
-{
- // Returns a PDG number corresponding to the likely ID of the cluster
-
- Float_t energy = mom.E();
- Float_t lambda0 = cluster->GetM02();
- Float_t lambda1 = cluster->GetM20();
-
- // ---------------------
- // Use bayesian approach
- // ---------------------
-
- if(fUseBayesianWeights){
-
- Double_t weights[AliPID::kSPECIESN];
-
- if(calo == "EMCAL"&& fRecalculateBayesian){
- fEMCALPIDUtils->ComputePID(energy, lambda0);
- for(Int_t i = 0; i < AliPID::kSPECIESN; i++) weights[i] = fEMCALPIDUtils->GetPIDFinal(i);
- }
- else {
- for(Int_t i = 0; i < AliPID::kSPECIESN; i++) weights[i] = cluster->GetPID()[i];
- }
-
- if(fDebug > 0) {
- printf("AliCaloPID::GetIdentifiedParticleType: BEFORE calo %s, ph %0.2f, pi0 %0.2f, el %0.2f, conv el %0.2f, hadrons: pion %0.2f, kaon %0.2f, proton %0.2f , neutron %0.2f, kaon %0.2f \n",
- calo.Data(),
- weights[AliVCluster::kPhoton], weights[AliVCluster::kPi0],
- weights[AliVCluster::kElectron], weights[AliVCluster::kEleCon],
- weights[AliVCluster::kPion], weights[AliVCluster::kKaon],
- weights[AliVCluster::kProton],
- weights[AliVCluster::kNeutron], weights[AliVCluster::kKaon0]);
- }
-
- return GetIdentifiedParticleTypeFromBayesWeights(calo, weights, energy);
- }
-
- // -------------------------------------------------------
- // Calculate PID SS from data, do not use bayesian weights
- // -------------------------------------------------------
-
- if(fDebug > 0) printf("AliCaloPID::GetIdentifiedParticleType: Calorimeter %s, E %3.2f, l0 %3.2f, l1 %3.2f, disp %3.2f, tof %1.11f, distCPV %3.2f, distToBC %1.1f, NMax %d\n",
- calo.Data(),energy,lambda0,cluster->GetM20(),cluster->GetDispersion(),cluster->GetTOF(),
- cluster->GetEmcCpvDistance(), cluster->GetDistanceToBadChannel(),cluster->GetNExMax());
-
- if(cluster->IsEMCAL()){
-
- if(fDebug > 0) printf("AliCaloPID::GetIdentifiedParticleType() - EMCAL SS %f <%f < %f?\n",fEMCALL0CutMin, lambda0, fEMCALL0CutMax);
-
- if(lambda0 < fEMCALL0CutMax && lambda0 > fEMCALL0CutMin) return kPhoton ;
- else return kNeutralUnknown ;
- }//EMCAL
- else {//PHOS
- if(TestPHOSDispersion(mom.Pt(),lambda0,lambda1) < fPHOSDispersionCut) return kPhoton;
- else return kNeutralUnknown;
- }
-
-}
-
-//_______________________________________________________________________________
-Int_t AliCaloPID::GetIdentifiedParticleTypeFromBayesWeights(const TString calo,
- const Double_t * pid,
- const Float_t energy)
-{
- //Return most probable identity of the particle after bayesian weights calculated in reconstruction
-
- if(!pid){
- printf("AliCaloPID::GetIdentifiedParticleType() - pid pointer not initialized!!!\n");
- abort();
- }
-
- Float_t wPh = fPHOSPhotonWeight ;
- Float_t wPi0 = fPHOSPi0Weight ;
- Float_t wE = fPHOSElectronWeight ;
- Float_t wCh = fPHOSChargeWeight ;
- Float_t wNe = fPHOSNeutralWeight ;
-
- if(calo == "PHOS" && fPHOSWeightFormula){
- wPh = GetPHOSPhotonWeightFormula()->Eval(energy) ;
- wPi0 = GetPHOSPi0WeightFormula() ->Eval(energy);
- }
-
- if(calo == "EMCAL"){
-
- wPh = fEMCALPhotonWeight ;
- wPi0 = fEMCALPi0Weight ;
- wE = fEMCALElectronWeight ;
- wCh = fEMCALChargeWeight ;
- wNe = fEMCALNeutralWeight ;
-
- }
-
- if(fDebug > 0) printf("AliCaloPID::GetIdentifiedParticleType: calo %s, ph %0.2f, pi0 %0.2f, el %0.2f, conv el %0.2f, hadrons: pion %0.2f, kaon %0.2f, proton %0.2f , neutron %0.2f, kaon %0.2f \n",
- calo.Data(),pid[AliVCluster::kPhoton], pid[AliVCluster::kPi0],
- pid[AliVCluster::kElectron], pid[AliVCluster::kEleCon],
- pid[AliVCluster::kPion], pid[AliVCluster::kKaon], pid[AliVCluster::kProton],
- pid[AliVCluster::kNeutron], pid[AliVCluster::kKaon0]);
-
- Int_t pdg = kNeutralUnknown ;
- Float_t chargedHadronWeight = pid[AliVCluster::kProton]+pid[AliVCluster::kKaon]+
- pid[AliVCluster::kPion]+pid[AliVCluster::kMuon];
- Float_t neutralHadronWeight = pid[AliVCluster::kNeutron]+pid[AliVCluster::kKaon0];
- Float_t allChargedWeight = pid[AliVCluster::kElectron]+pid[AliVCluster::kEleCon]+ chargedHadronWeight;
- Float_t allNeutralWeight = pid[AliVCluster::kPhoton]+pid[AliVCluster::kPi0]+ neutralHadronWeight;
-
- //Select most probable ID
- if(calo=="PHOS"){
- if(pid[AliVCluster::kPhoton] > wPh) pdg = kPhoton ;
- else if(pid[AliVCluster::kPi0] > wPi0) pdg = kPi0 ;
- else if(pid[AliVCluster::kElectron] > wE) pdg = kElectron ;
- else if(pid[AliVCluster::kEleCon] > wE) pdg = kEleCon ;
- else if(chargedHadronWeight > wCh) pdg = kChargedHadron ;
- else if(neutralHadronWeight > wNe) pdg = kNeutralHadron ;
- else if(allChargedWeight > allNeutralWeight)
- pdg = kChargedUnknown ;
- else
- pdg = kNeutralUnknown ;
- }
- else{//EMCAL
-
- if(pid[AliVCluster::kPhoton] > wPh) pdg = kPhoton ;
- else if(pid[AliVCluster::kElectron] > wE) pdg = kElectron ;
- else if(pid[AliVCluster::kPhoton]+pid[AliVCluster::kElectron] > wPh) pdg = kPhoton ; //temporal sollution until track matching for electrons is considered
- else if(pid[AliVCluster::kPi0] > wPi0) pdg = kPi0 ;
- else if(chargedHadronWeight + neutralHadronWeight > wCh) pdg = kChargedHadron ;
- else if(neutralHadronWeight + chargedHadronWeight > wNe) pdg = kNeutralHadron ;
- else pdg = kNeutralUnknown ;
- }
-
- if(fDebug > 0)printf("AliCaloPID::GetIdentifiedParticleType:Final Pdg: %d, cluster energy %2.2f \n", pdg,energy);
-
- return pdg ;
-
-}
-
-//_________________________________________
-TString AliCaloPID::GetPIDParametersList()
-{
- //Put data member values in string to keep in output container
-
- TString parList ; //this will be list of parameters used for this analysis.
- const Int_t buffersize = 255;
- char onePar[buffersize] ;
- snprintf(onePar,buffersize,"--- AliCaloPID ---\n") ;
- parList+=onePar ;
- if(fUseBayesianWeights){
- snprintf(onePar,buffersize,"fEMCALPhotonWeight =%2.2f (EMCAL bayesian weight for photons)\n",fEMCALPhotonWeight) ;
- parList+=onePar ;
- snprintf(onePar,buffersize,"fEMCALPi0Weight =%2.2f (EMCAL bayesian weight for pi0)\n",fEMCALPi0Weight) ;
- parList+=onePar ;
- snprintf(onePar,buffersize,"fEMCALElectronWeight =%2.2f(EMCAL bayesian weight for electrons)\n",fEMCALElectronWeight) ;
- parList+=onePar ;
- snprintf(onePar,buffersize,"fEMCALChargeWeight =%2.2f (EMCAL bayesian weight for charged hadrons)\n",fEMCALChargeWeight) ;
- parList+=onePar ;
- snprintf(onePar,buffersize,"fEMCALNeutralWeight =%2.2f (EMCAL bayesian weight for neutral hadrons)\n",fEMCALNeutralWeight) ;
- parList+=onePar ;
- snprintf(onePar,buffersize,"fPHOSPhotonWeight =%2.2f (PHOS bayesian weight for photons)\n",fPHOSPhotonWeight) ;
- parList+=onePar ;
- snprintf(onePar,buffersize,"fPHOSPi0Weight =%2.2f (PHOS bayesian weight for pi0)\n",fPHOSPi0Weight) ;
- parList+=onePar ;
- snprintf(onePar,buffersize,"fPHOSElectronWeight =%2.2f(PHOS bayesian weight for electrons)\n",fPHOSElectronWeight) ;
- parList+=onePar ;
- snprintf(onePar,buffersize,"fPHOSChargeWeight =%2.2f (PHOS bayesian weight for charged hadrons)\n",fPHOSChargeWeight) ;
- parList+=onePar ;
- snprintf(onePar,buffersize,"fPHOSNeutralWeight =%2.2f (PHOS bayesian weight for neutral hadrons)\n",fPHOSNeutralWeight) ;
- parList+=onePar ;
-
- if(fPHOSWeightFormula){
- snprintf(onePar,buffersize,"PHOS Photon Weight Formula: %s\n",fPHOSPhotonWeightFormulaExpression.Data() ) ;
- parList+=onePar;
- snprintf(onePar,buffersize,"PHOS Pi0 Weight Formula: %s\n",fPHOSPi0WeightFormulaExpression.Data() ) ;
- parList+=onePar;
- }
- }
- else {
- snprintf(onePar,buffersize,"EMCAL: fEMCALL0CutMin =%2.2f, fEMCALL0CutMax =%2.2f (Cut on Shower Shape) \n",fEMCALL0CutMin, fEMCALL0CutMax) ;
- parList+=onePar ;
- snprintf(onePar,buffersize,"EMCAL: fEMCALDEtaCut =%2.2f, fEMCALDPhiCut =%2.2f (Cut on track matching) \n",fEMCALDEtaCut, fEMCALDPhiCut) ;
- parList+=onePar ;
- snprintf(onePar,buffersize,"fTOFCut =%e (Cut on TOF, used in PID evaluation) \n",fTOFCut) ;
- parList+=onePar ;
- snprintf(onePar,buffersize,"fPHOSRCut =%2.2f, fPHOSDispersionCut =%2.2f (Cut on Shower Shape and CPV) \n",fPHOSRCut,fPHOSDispersionCut) ;
- parList+=onePar ;
-
- }
-
- return parList;
-
-}
-
-//________________________________________________
-void AliCaloPID::Print(const Option_t * opt) const
-{
-
- //Print some relevant parameters set for the analysis
- if(! opt)
- return;
-
- printf("***** Print: %s %s ******\n", GetName(), GetTitle() ) ;
-
- if(fUseBayesianWeights){
- printf("PHOS PID weight , photon %0.2f, pi0 %0.2f, e %0.2f, charge %0.2f, neutral %0.2f \n",
- fPHOSPhotonWeight, fPHOSPi0Weight,
- fPHOSElectronWeight, fPHOSChargeWeight, fPHOSNeutralWeight) ;
- printf("EMCAL PID weight, photon %0.2f, pi0 %0.2f, e %0.2f, charge %0.2f, neutral %0.2f\n",
- fEMCALPhotonWeight, fEMCALPi0Weight,
- fEMCALElectronWeight, fEMCALChargeWeight, fEMCALNeutralWeight) ;
-
- printf("PHOS Parametrized weight on? = %d\n", fPHOSWeightFormula) ;
- if(fPHOSWeightFormula){
- printf("Photon weight formula = %s\n", fPHOSPhotonWeightFormulaExpression.Data());
- printf("Pi0 weight formula = %s\n", fPHOSPi0WeightFormulaExpression .Data());
- }
- if(fRecalculateBayesian) printf(" Recalculate bayesian with Particle Flux? = %d\n",fParticleFlux);
- }
- else {
- printf("TOF cut = %e\n",fTOFCut);
- printf("EMCAL Lambda0 cut min = %2.2f; max = %2.2f\n",fEMCALL0CutMin, fEMCALL0CutMax);
- printf("EMCAL cluster-track dEta < %2.3f; dPhi < %2.3f\n",fEMCALDEtaCut, fEMCALDPhiCut);
- printf("PHOS Treac matching cut =%2.2f, Dispersion Cut =%2.2f \n",fPHOSRCut,fPHOSDispersionCut) ;
-
- }
-
- printf(" \n");
-
-}
-
-//___________________________________________________________________________
-void AliCaloPID::SetPIDBits(const TString calo, AliVCluster * cluster,
- AliAODPWG4Particle * ph, AliCalorimeterUtils* cu,
- AliVEvent* event)
-{
- //Set Bits for PID selection
-
- //Dispersion/lambdas
- //Double_t disp= cluster->GetDispersion() ;
- Double_t l1 = cluster->GetM20() ;
- Double_t l0 = cluster->GetM02() ;
- Bool_t isDispOK = kTRUE ;
- if(cluster->IsPHOS()){
- if(TestPHOSDispersion(ph->Pt(),l0,l1) < fPHOSDispersionCut) isDispOK = kTRUE;
- else isDispOK = kFALSE;
- }
- else{//EMCAL
-
- if(l0 > fEMCALL0CutMin && l0 < fEMCALL0CutMax) isDispOK = kTRUE;
-
- }
-
- ph->SetDispBit(isDispOK) ;
-
- //TOF
- Double_t tof=cluster->GetTOF() ;
- ph->SetTOFBit(TMath::Abs(tof)<fTOFCut) ;
-
- //Charged
- Bool_t isNeutral = IsTrackMatched(cluster,cu,event);
-
- ph->SetChargedBit(isNeutral);
-
- //Set PID pdg
- ph->SetIdentifiedParticleType(GetIdentifiedParticleType(calo,*ph->Momentum(),cluster));
-
- if(fDebug > 0){
- printf("AliCaloPID::SetPIDBits: TOF %e, Lambda0 %2.2f, Lambda1 %2.2f\n",tof , l0, l1);
- printf("AliCaloPID::SetPIDBits: pdg %d, bits: TOF %d, Dispersion %d, Charge %d\n",
- ph->GetIdentifiedParticleType(), ph->GetTOFBit() , ph->GetDispBit() , ph->GetChargedBit());
- }
-}
-
-//_________________________________________________________
-Bool_t AliCaloPID::IsTrackMatched(AliVCluster* cluster,
- AliCalorimeterUtils * cu,
- AliVEvent* event) const
-{
- //Check if there is any track attached to this cluster
-
- Int_t nMatches = cluster->GetNTracksMatched();
- AliVTrack * track = 0;
- Double_t p[3];
-
- if(nMatches > 0){
-
- //In case of ESDs, by default without match one entry with negative index, no match, reject.
- if(!strcmp("AliESDCaloCluster",Form("%s",cluster->ClassName())))
- {
- Int_t iESDtrack = cluster->GetTrackMatchedIndex();
- if(iESDtrack >= 0) track = dynamic_cast<AliVTrack*> (event->GetTrack(iESDtrack));
- else return kFALSE;
-
- if (!track){
- printf("AliCaloPID::IsTrackMatched() - Null matched track in ESD when index is OK!\n");
- return kFALSE;
- }
- }
- else { // AOD
- track = dynamic_cast<AliVTrack*> (cluster->GetTrackMatched(0));
- if (!track){
- printf("AliCaloPID::IsTrackMatched() - Null matched track in AOD!\n");
- return kFALSE;
- }
- }
-
- Float_t dZ = cluster->GetTrackDz();
- Float_t dR = cluster->GetTrackDx();
-
- // if track matching was recalculated
- if(cluster->IsEMCAL() && cu && cu->IsRecalculationOfClusterTrackMatchingOn()){
- dR = 2000., dZ = 2000.;
- cu->GetEMCALRecoUtils()->GetMatchedResiduals(cluster->GetID(),dZ,dR);
- }
-
- if(cluster->IsPHOS()) {
-
- track->GetPxPyPz(p) ;
- TLorentzVector trackmom(p[0],p[1],p[2],0);
- Int_t charge = track->Charge();
- Double_t mf = event->GetMagneticField();
- if(TestPHOSChargedVeto(dR, dZ, trackmom.Pt(), charge, mf ) < fPHOSRCut) return kTRUE;
- else return kFALSE;
-
- }//PHOS
- else {//EMCAL
-
- if(fDebug > 0)
- printf("AliCaloPID::IsTrackMatched - EMCAL dR %f < %f, dZ %f < %f \n",dR, fEMCALDPhiCut, dZ, fEMCALDEtaCut);
-
- if(TMath::Abs(dR) < fEMCALDPhiCut &&
- TMath::Abs(dZ) < fEMCALDEtaCut) return kTRUE;
- else return kFALSE;
-
- }//EMCAL cluster
-
-
- } // more than 1 match, at least one track in array
- else return kFALSE;
-
-}
-
-//___________________________________________________________________________________________________
-Float_t AliCaloPID::TestPHOSDispersion(const Double_t pt, const Double_t l1, const Double_t l2) const
-{
- //Check if cluster photon-like. Uses photon cluster parameterization in real pp data
- //Returns distance in sigmas. Recommended cut 2.5
-
- Double_t l2Mean = 1.53126+9.50835e+06/(1.+1.08728e+07*pt+1.73420e+06*pt*pt) ;
- Double_t l1Mean = 1.12365+0.123770*TMath::Exp(-pt*0.246551)+5.30000e-03*pt ;
- Double_t l2Sigma = 6.48260e-02+7.60261e+10/(1.+1.53012e+11*pt+5.01265e+05*pt*pt)+9.00000e-03*pt;
- Double_t l1Sigma = 4.44719e-04+6.99839e-01/(1.+1.22497e+00*pt+6.78604e-07*pt*pt)+9.00000e-03*pt;
- Double_t c =-0.35-0.550*TMath::Exp(-0.390730*pt) ;
- Double_t r2 = 0.5* (l1-l1Mean)*(l1-l1Mean)/l1Sigma/l1Sigma +
- 0.5* (l2-l2Mean)*(l2-l2Mean)/l2Sigma/l2Sigma +
- 0.5*c*(l1-l1Mean)*(l2-l2Mean)/l1Sigma/l2Sigma ;
-
- if(fDebug > 0) printf("AliCaloPID::TestPHOSDispersion() - PHOS SS R %f < %f?\n", TMath::Sqrt(r2), fPHOSDispersionCut);
-
- return TMath::Sqrt(r2) ;
-
-}
-
-//_______________________________________________________________________________________________
-Float_t AliCaloPID::TestPHOSChargedVeto(const Double_t dx, const Double_t dz, const Double_t pt,
- const Int_t charge, const Double_t mf) const
-{
- //Checks distance to the closest track. Takes into account
- //non-perpendicular incidence of tracks.
- //returns distance in sigmas. Recommended cut: 2.
- //Requires (sign) of magnetic filed. onc can find it for example as following
- // Double_t mf=0. ;
- // AliESDEvent *event = dynamic_cast<AliESDEvent*>(InputEvent());
- // if(event)
- // mf = event->GetMagneticField(); //Positive for ++ and negative for --
-
-
- Double_t meanX = 0.;
- Double_t meanZ = 0.;
- Double_t sx = TMath::Min(5.4,2.59719e+02*TMath::Exp(-pt/1.02053e-01)+
- 6.58365e-01*5.91917e-01*5.91917e-01/((pt-9.61306e-01)*(pt-9.61306e-01)+5.91917e-01*5.91917e-01)+
- 1.59219);
- Double_t sz = TMath::Min(2.75,4.90341e+02*1.91456e-02*1.91456e-02/(pt*pt+1.91456e-02*1.91456e-02)+
- 1.60) ;
-
- if(mf<0.){ //field --
- meanZ = -0.468318 ;
- if(charge>0)
- meanX = TMath::Min(7.3, 3.89994*1.20679 *1.20679 /(pt*pt+1.20679*1.20679)+
- 0.249029+2.49088e+07*TMath::Exp(-pt*3.33650e+01)) ;
- else
- meanX =-TMath::Min(7.7, 3.86040*0.912499*0.912499/(pt*pt+0.912499*0.912499)+
- 1.23114 +4.48277e+05*TMath::Exp(-pt*2.57070e+01)) ;
- }
- else{ //Field ++
- meanZ = -0.468318;
- if(charge>0)
- meanX =-TMath::Min(8.0,3.86040*1.31357*1.31357/(pt*pt+1.31357*1.31357)+
- 0.880579+7.56199e+06*TMath::Exp(-pt*3.08451e+01)) ;
- else
- meanX = TMath::Min(6.85, 3.89994*1.16240*1.16240/(pt*pt+1.16240*1.16240)-
- 0.120787+2.20275e+05*TMath::Exp(-pt*2.40913e+01)) ;
- }
-
- Double_t rz = (dz-meanZ)/sz ;
- Double_t rx = (dx-meanX)/sx ;
-
- if(fDebug > 0)
- printf("AliCaloPID::TestPHOSDispersion() - PHOS Matching R %f < %f\n",TMath::Sqrt(rx*rx+rz*rz), fPHOSRCut);
-
- return TMath::Sqrt(rx*rx+rz*rz) ;
-
-}
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff